Home / 145,428.67-200,624.20-85,001.86

Finding the Fourth Proportional to 145,428.67, 200,624.20 and 85,001.86

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Solution

The fourth proportional to 145,428.67, 200,624.20 and 85,001.86 is: 117,263.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,428.67 : 200,624.20 = 85,001.86 : x
  2. Step 2: Convert to fraction form
    145,428.67/200,624.20 = 85,001.86/x
  3. Step 3: Cross multiply
    145,428.67x = 200,624.20 × 85,001.86
  4. Step 4: Simplify right side
    145,428.67x = 17,053,430,161.01
  5. Step 5: Solve for x
    x = 17,053,430,161.01/145,428.67
  6. Step 6: Final answer
    x = 117,263.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.